What is the theme of the story? why?

The theme of the story is loyalty. The crew members always had each other's backs, and took blood oaths to swear their allegiance to each other. Nailer proves his loyalty to Bapi by refusing to steal the first the oil pocket. Nailer is rewarded by the Fates with his life. Sloth, on the other hand, goes against her blood oath and gets banished. He also showed his loyalty to his father. Nailer admitted that his father beats him but he also saved him from the storm.